I dunno... my wife asked me to marry her. Well, really it was more like she told me I should, for my own good. She said to me, at a time when we were just friends, that I had a terrible history of choosing women for myself (a profoundly true statement that only a true friend could make), so she'd do it for me, and she knew a perfect one for me. "Oh really?" I said, "and who's that?"
"Me," she said.
That was 26 years ago. She was right. We're still friends, above all else, and that's why we're still together. Being friends is what carries you through. Marry your best friend of whatever gender you prefer, and you'll make it.